Q: Is 1,267,428 a Prime Number?
A: No, 1,267,428 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 1267428 can be evenly divided by 1 2 3 4 6 12 105,619 211,238 316,857 422,476 633,714 and 1,267,428, with no remainder.
Since 1,267,428 cannot be divided by just 1 and 1,267,428, it is not a prime number.